You would do well to also clean all the fuse holders and make sure the fuse ratings are correct.

Check all the earths, especially the main ones, battery to engine, engine to chassis and battery to body, might pay to replace the earth braids, they're not expensive and can save a lot of work chasing faults ...

Hi I need some help on an electrical issue on my 1985 90 if possible. I have no ignition live - clocks, indicators, dash lights, wipers etc etc but does turn over and all lights are working. On the fuse board i have 2 permanent live fuses working...